Home / 396,400.32-547,014.96-226,645.56

Finding the Fourth Proportional to 396,400.32, 547,014.96 and 226,645.56

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Solution

The fourth proportional to 396,400.32, 547,014.96 and 226,645.56 is: 312,760.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,400.32 : 547,014.96 = 226,645.56 : x
  2. Step 2: Convert to fraction form
    396,400.32/547,014.96 = 226,645.56/x
  3. Step 3: Cross multiply
    396,400.32x = 547,014.96 × 226,645.56
  4. Step 4: Simplify right side
    396,400.32x = 123,978,511,937.58
  5. Step 5: Solve for x
    x = 123,978,511,937.58/396,400.32
  6. Step 6: Final answer
    x = 312,760.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.